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Screw-FIX Flex Joiner - Ø 100 (25-100-J)
National Flues presents the Screw-FIX Flex Joiner - Ø 100, a top-quality, stainless steel flue accessory engineered for joining multi-fuel flexible flue liners seamlessly. As a leading MI-FLEX accessory, it provides a reliable and secure solution for extending your chimney system, ensuring compliance with UK building regulations and delivering excellent performance for wood, oil, gas, and smokeless coal appliances.
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In Stock
£33.49
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Secure, airtight connection for multi-fuel flexible flue liners
Complies with Building Regulations Document J and CE/HETAS standards
Constructed in high-grade 316L stainless steel for enhanced durability
Withstands high temperatures up to 600°C (T600 rating)
Ideal for extending flue liners when the available flex length is insufficient
Versatile compatibility with wood (<20% moisture), smokeless coal, gas, and oil appliances
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At National Flues, we continuously monitor competitor prices. This ensures that we consistently offer you the best deals on all our products. Here’s how we keep your costs low:
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“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.
The Screw-FIX Flex Joiner - Ø 100 is an indispensable accessory for anyone installing or extending a flexible flue liner system. Specifically designed for seamless integration with MI-FLEX 316 and 904 multi-fuel flexible flue liners, this joiner ensures a secure, airtight connection. An essential component for creating a full chimney system, it complies with Building Regulations Document J, ensuring your flue liner is safely enclosed within a masonry chimney.
Suitable for use with wood (moisture <20%), smokeless coal, gas, and oil appliances, it can handle temperatures up to 600°C (T600 designation). The joiner's robust design ensures longevity and reliable performance, making it a great choice for both residential and commercial installations. Regular maintenance of the chimney system, including sweeping at least once a year (twice if using solid fuel), ensures long-term efficiency and safety.
Remember, this joiner should only be used if the chimney liner length exceeds the maximum available flex length and must not be used on gas liners.
SKU: 25-100-J
Technical Specifications
SKU
25-100-J
Material
316L Stainless Steel
Size
u00d8 100 mm
Temperature Rating
T600 (up to 600u00b0C)
Compliance
CE, HETAS, Building Regulations Document J
System Compatibility
MI-FLEX 316 and 904 multi-fuel flexible flue liners
Before installation, ensure the flue liner length exceeds the maximum available flex length, as this joiner is specifically designed for such scenarios. Note that it must not be used on gas flue liners. Secure the joiner firmly to achieve an airtight connection and strictly follow the manufacturer’s guidelines. After installation, inspect all connections for perfect alignment and schedule routine chimney sweeps annually (or twice yearly if using solid fuel) to maximise performance. Avoid using chemical cleaners or mild steel tools on the stainless steel components to prevent any damage to the finish.
No, this joiner is specifically designed for multi-fuel flexible flue liners and must not be used with gas flue liners.
The joiner is suitable for use with wood (moisture <20%), smokeless coal, gas, and oil appliances.
The Screw-FIX Flex Joiner can handle temperatures up to 600°C (T600 designation).
Yes, the joiner complies with Building Regulations Document J, which requires that a flexible flue liner be installed completely enclosed inside a masonry chimney.
It's recommended to have the chimney system swept at least once a year, and twice a year if serving solid fuel appliances – once at the end of the heating season and once at the start.
No, under no circumstances should chemical cleaners or mild steel tools be used to sweep stainless steel chimneys.
For solid fuel applications, a list of HETAS registered sweeps can be found at www.hetas.co.uk.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Wednesday, April 30th.
If you need faster stove or fireplace delivery please give us a call.
We can often reduce longer lead times if we pay the carrier £25 for express delivery.
Visit our Shipping Information page for more information.
Warranty & Returns +
All our products come with warranties. Mi-Flex offers a lifetime guarantee.
Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.
Price Match Guarantee +
We will match any price like for like on a retail basis. Give us a call if you find it cheaper and want to buy from us.
The Screw-FIX Flex Joiner - Ø 100 is an essential component for any chimney system that requires the extension of multi-fuel flexible flue liners. Manufactured by National Flues, this joiner is designed to deliver a secure, airtight connection between flue liner sections when the available flex length is insufficient. In today’s market, where safety and efficiency are paramount, this product stands out as a reliable solution for both residential and commercial installations.
Product Overview
Key Attributes:
- Designed to join extended sections of multi-fuel flue liners
- Constructed from robust 316L stainless steel for superior durability
- Withstands high temperatures up to 600°C (T600 designation)
- Fully compliant with Building Regulations Document J, CE, and HETAS standards
Whether you are a professional installer or a homeowner undertaking a DIY project, understanding the role of this joiner is crucial. The Screw-FIX Flex Joiner is not just another accessory; it is a critical component that contributes to the overall safety and efficiency of your chimney system. This guide provides a detailed analysis of its features, benefits, and installation practices to help you make an informed purchasing decision.
Technical Specifications and Quality Assurance
When investing in chimney system components, quality and compliance take precedence. The Screw-FIX Flex Joiner is engineered from high-grade 316L stainless steel which ensures long-lasting performance despite exposure to high temperatures and challenging conditions. Here is a quick overview of its technical specifications:
- SKU: 25-100-J
- Material: 316L Stainless Steel
- Size: Ø 100 mm
- Temperature Rating: T600 (up to 600°C)
- Compliance: CE, HETAS, and Building Regulations Document J
- Compatibility: Optimised for MI-FLEX 316 and 904 multi-fuel flexible flue liners
This robust construction not only guarantees durability but also ensures that your investment adheres to the most current safety standards. The joiner’s design enables efficient heat resistance and structural stability, which are essential for maintaining a safe flue system.
Installation Guidelines and Safety Measures
Proper installation is key to harnessing the full benefits of the Screw-FIX Flex Joiner. It is intended for scenarios where the chimney liner extends beyond the maximum available flex length. Here are some important guidelines to follow during installation:
- Site Evaluation: Before installation, measure your flue liner to confirm that an extension is necessary. This joiner is specifically designed to bridge such gaps, ensuring a secure connection.
- Safety First: Always adhere to the manufacturer’s safety guidelines. This component must not be used on gas flue liners!
- Secure Fitting: Ensure the joiner is tightly secured to prevent any leakage of gases. An airtight fit is essential to maintain the integrity of your chimney system.
- Routine Maintenance: Regular chimney sweeping is highly recommended—at least once a year for standard appliances, or twice a year when solid fuel is used. Routine maintenance not only prolongs the lifespan of your flue system but also reduces the risk of blockages and other hazards.
Benefits of the Screw-FIX Flex Joiner
Investing in the right flue accessory can offer multiple benefits. Here are some of the key advantages that the Screw-FIX Flex Joiner delivers:
- Enhanced Safety: Its compliant design ensures your installation meets all necessary building regulations, reducing potential hazards.
- Optimised Efficiency: The joiner aids in maintaining an airtight flue liner join, ensuring optimal draft and heat distribution.
- Durability: Made from high-quality 316L stainless steel, it withstands harsh operating conditions including high temperatures and corrosive elements.
- Cost-Effective: Prevents the need for premature flue repairs or replacements by providing a lasting connection solution.
- User-Friendly Installation: Designed with the installer in mind, it offers a straightforward and robust solution even for complex flue systems.
Addressing Frequently Asked Questions
When considering the purchase of the Screw-FIX Flex Joiner, you might have several questions. Below, we address some common queries that arise:
- Can this joiner be used with gas flue liners?
No, it is specifically designed for multi-fuel flexible flue liners and should not be used with gas liners.
- What types of fuel are compatible?
The joiner is ideal for use with wood (with a moisture content of less than 20%), smokeless coal, oil, and gas appliances (excluding gas flue liner applications).
- How often should maintenance be conducted?
Regular chimney sweeping is recommended at least once a year, and twice a year for solid fuel systems to ensure optimum performance and safety.
- Is the joiner easy to install?
Yes, with the correct measurements and by following the installation guidelines, even a DIY installer can achieve a secure, professional fit.
These answers are intended to provide clarity and build confidence in your purchasing decision, ensuring all concerns are addressed.
Conclusion
In summary, the Screw-FIX Flex Joiner - Ø 100 is an indispensable solution for anyone extending or repairing their multi-fuel flexible flue liner system. With its robust construction, compliance with stringent safety standards, and ease of installation, it offers a secure and long-lasting solution. Whether upgrading an existing system or installing a new one, this joiner provides peace of mind by ensuring a faultless, airtight connection.
By investing in this high-quality component from National Flues, you are choosing reliability, efficiency, and safety for your chimney system. Every aspect of its design is focused on delivering a product that not only meets but exceeds industry standards. With detailed attention to technical performance and ease of use, it is well-suited for both seasoned professionals and DIY enthusiasts alike.
The comprehensive benefits, combined with clear installation guidelines and strict adherence to safety regulations, make the Screw-FIX Flex Joiner the ideal choice for your flue system extension needs. It is a cost-effective solution that guarantees enhanced safety and performance, providing lasting value for your home or business.
Buy now or call 01670 206 999.
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